If the past decade of Giants offensive lines has taught us anything, it’s to be certain that assembling the second-worst unit in NFL history isn’t the same as reaching rock bottom.

Every time it looks as if things can’t get worse — after 2015 first-round pick Ereck Flowers busted or after 2018 free-agent signing Nate Solder flopped or after the Giants ranked No. 30 or worse in ESPN’s pass-block win rate three times from 2017-20 — they do.

Is this the end of the road or is the cycle starting anew?

An angry fan mob was thrown a piece of meat Monday when the Giants fired offensive line coach Bobby Johnson, who oversaw the stunted development of four 2022 and 2023 draft picks over his two seasons.